/*
 *   Copyright 2008 Francois Fernandes
 *
 *   Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 */
package com.googlecode.opendoclibrary.library.spi;

import java.net.URI;

public interface IMetadata extends Iterable<IMetadataEntry>
{
    public static final String ODL_INTERNAL_NS = "http://opendoclibrary.googlecode.com/odl/ns/odl-internal";

    public static final String ODL_INTERNAL_PREFIX = "odl-internal";

    public static final String ODL_NS_REGISTRY = "http://opendoclibrary.googlecode.com/odl/ns/odl-registered-ns";

    public static final String ODL_NS_REGISTRY_PREFIX = "odl-registered-ns";

    public RegisteredNamespace[] getRegisteredNamespaces();

    String getString( String namespacePrefix, String key );

    public IMetadataView getView( String namespacePrefix );

    void putString( String namespacePrefix, String key, String value );

    public void registerNamespace( URI namespaceURI, String namespacePrefix );

    void save() throws LibraryException;
}
